[INFO] cloning repository https://github.com/robertefry/rust-sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robertefry/rust-sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertefry%2Frust-sudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertefry%2Frust-sudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00f531ba9d93f7616dd2294de26f8c518178d7ea
[INFO] checking robertefry/rust-sudoku against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertefry%2Frust-sudoku" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robertefry/rust-sudoku on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robertefry/rust-sudoku
[INFO] finished tweaking git repo https://github.com/robertefry/rust-sudoku
[INFO] tweaked toml for git repo https://github.com/robertefry/rust-sudoku written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/robertefry/rust-sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db557c7fb04545df12b574c9f78fe17a5b98af44a483a5596a97060f0c5ad9a0
[INFO] running `Command { std: "docker" "start" "-a" "db557c7fb04545df12b574c9f78fe17a5b98af44a483a5596a97060f0c5ad9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db557c7fb04545df12b574c9f78fe17a5b98af44a483a5596a97060f0c5ad9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db557c7fb04545df12b574c9f78fe17a5b98af44a483a5596a97060f0c5ad9a0", kill_on_drop: false }`
[INFO] [stdout] db557c7fb04545df12b574c9f78fe17a5b98af44a483a5596a97060f0c5ad9a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de7d9d4cc37f58416f87709bc622a479f8f4968b5e41fef0b31c3506262d35a2
[INFO] running `Command { std: "docker" "start" "-a" "de7d9d4cc37f58416f87709bc622a479f8f4968b5e41fef0b31c3506262d35a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking util v0.1.0 (/opt/rustwide/workdir/util)
[INFO] [stdout] warning: unused import: `benchmark::*`
[INFO] [stdout]  --> util/src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use benchmark::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `benchmark::*`
[INFO] [stdout]  --> util/src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use benchmark::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "de7d9d4cc37f58416f87709bc622a479f8f4968b5e41fef0b31c3506262d35a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7d9d4cc37f58416f87709bc622a479f8f4968b5e41fef0b31c3506262d35a2", kill_on_drop: false }`
[INFO] [stdout] de7d9d4cc37f58416f87709bc622a479f8f4968b5e41fef0b31c3506262d35a2